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            <h1 class="display-5 fw-bold">免费工具资源导航</h1>
            <p class="lead">发现优质工具，提升工作效率</p>
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                                <h5 class="card-title">Apache</h5>
                                <p class="card-text">Java开源项目软件的摇篮</p>
                                <a href="http://apache.org/" target="_blank" class="btn btn-primary">访问</a>
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                                <h5 class="card-title">GitHub</h5>
                                <p class="card-text">代码托管和版本控制平台</p>
                                <a href="https://github.com" target="_blank" class="btn btn-primary">访问</a>
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                                <h5 class="card-title">CodePen</h5>
                                <p class="card-text">前端代码在线测试平台</p>
                                <a href="https://codepen.io" target="_blank" class="btn btn-primary">访问</a>
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                                <h5 class="card-title">all to all</h5>
                                <p class="card-text">在线文件转换</p>
                                <a href="https://www.alltoall.net/" target="_blank" class="btn btn-primary">访问</a>
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                                <h5 class="card-title">Canva</h5>
                                <p class="card-text">简易平面设计工具</p>
                                <a href="https://canva.com" target="_blank" class="btn btn-primary">访问</a>
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                                <h5 class="card-title">百度AI</h5>
                                <p class="card-text">拥有满血DeepSeek加持</p>
                                <a href="https://chat.baidu.com/" target="_blank" class="btn btn-primary">访问</a>
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